acceleration equations

As a bus comes to a complete stop, it slows from 9m/s to 0m/s in 7 seconds. To use the acceleration equation, you will need to identify the final velocity. What is the final velocity in this problem?

• 9

• 0

• 7

• 63

Tags

NGSS.HS-PS2-1

What are the units for time in questions about acceleration?

• m/s

• m/s²

• m

• s

When a bus comes to a stop to avoid hitting a dog, it slows from 8m/s to 0m/s in 1.3 seconds. Which number in this problem is the initial velocity?

• 8

• 0

• 1

• 1.3

In a graph of velocity vs. time, what is the slope of the line?

• speed

• acceleration

• time

• velocity

A car starts from rest and travels for 5 seconds with a uniform acceleration of -1.5 m/s². According to information in the problem, what is the initial velocity of the car?

• 1.5

• -1.5

• 0

• 5

Tags

NGSS.HS-PS2-1

A mom pushing a stroller starts from rest and accelerates at a rate of 0.5m/s². The stroller travels 4.75m. What is the value of the displacement in this problem?

• 0

• 0.5

• 4.75

• m/s²

What are the units for acceleration?

• m/s

• km/hr

• m/s²

• m

Tags

NGSS.HS-PS2-1

What is the equation symbol for initial velocity?

• m/s

• V_i

• m/s²

• I_v

On a velocity-time graph, which label belongs on the x-axis?

• acceleration

• time

• velocity

• distance

Which statement describes the motion of the object in the graph between 4s and 7s?

• object is speeding up

• object is reversing direction

• object is at rest

• object is moving at constant velocity

Tags

NGSS.HS-PS2-1